TipTop Audio 248t 72HP Multiple Arbitrary Function Generator

The TipTop Audio 248t Multiple Arbitrary Function Generator is a faithful Eurorack adaptation of Buchla’s legendary MARF, bringing unparalleled West Coast style control voltage generation and processing into a compact 72HP module. Sitting somewhere between a sequencer, envelope generator, LFO bank and complex modulation brain, the 248t lets you sculpt evolving voltages and time relationships that are simply not possible with conventional step sequencers or envelopes.

At its heart are 16 dedicated output voltage sliders and 16 time interval sliders, letting you design up to 16 segments of voltage and duration with your hands on the panel. Each segment can be addressed, looped and warped in time, with continuous, quantised, sloped or stepped outputs available for everything from precise melodic sequencing to fluid, organic modulation. With four external inputs and extensive voltage control over stage addressing, times and multipliers, the 248t is just as happy processing incoming signals as it is generating them from scratch.

Crucially, TipTop and Buchla have expanded the original concept for modern Eurorack use, adding programmable tone scales and memory for 12 presets. That means you can store and recall your favourite patterns, time structures and pitch maps, making the 248t a powerful centrepiece for both live performance and studio patching. Whether you are building generative systems, complex envelopes for a single sound, or a full composition clocked from the 248t, this module rewards deep exploration with endlessly musical results.

Multiple Arbitrary Function Generator

The 248t is not just a sequencer and not just an envelope generator; it is both at once, and much more. With up to 16 time segments and 16 programmable voltages, you can create intricate shapes that act as pitch sequences, modulation curves, clock patterns or evolving control structures. This flexibility lets you design behaviours rather than simple loops, turning your modular system into a highly responsive, time-aware instrument.

Hands-On 16 Stage Control

Dedicated sliders for each of the 16 output voltages and 16 time intervals give you immediate, tactile control over every stage. You can see and feel your pattern at a glance, making it easy to sculpt complex phrases, rhythmic structures or envelope shapes in real time. This hands-on approach encourages experimentation and fast iteration, ideal for improvisation and live performance.

Deep Voltage Control and Processing

With segment-by-segment voltage control of times and output levels, two voltage controllable time multipliers and four external inputs, the 248t is as much a processor as it is a generator. You can modulate attack and decay times independently, warp entire patterns with the multipliers, or use incoming voltages to address specific stages. This makes it perfect for building self-modifying patches and responsive generative systems.

Scales, Presets and Stage Addressing

Programmable tone scales and 12 preset memories bring musical structure and repeatability to the 248t’s open-ended architecture. Stage address functionality with voltage control allows you to jump, scan or randomise through stages in any pattern, while start and stop logic lets you integrate the module tightly with the rest of your clocking and trigger infrastructure. The result is a uniquely powerful tool for both structured composition and free-form exploration.

• 16 Stage Voltage and Time Control - Sixteen dedicated output voltage sliders and sixteen time interval sliders let you design detailed multi-stage functions, from melodic sequences to complex envelopes, with a clear visual overview and immediate hands-on adjustment.
• Generator and Processor in One - The 248t can generate control voltages and also process incoming signals via its external inputs, enabling segment-by-segment voltage control of times and levels for advanced modulation, dynamic shaping and interactive patch behaviour.
• Extensive Voltage Control and Logic - Two voltage controllable time multipliers, stage address with voltage control, and start/stop logic via switches or triggers give you deep control over timing and stage selection, making it easy to create evolving, non-linear and performance-ready patches.
• Scales and Preset Memory - Built in tone scales and 12 preset slots allow you to store and recall your favourite configurations, keeping complex setups manageable and making the 248t a reliable hub for both live sets and studio work.

General

• Product: TipTop Audio 248t Multiple Arbitrary Function Generator
• Format: Eurorack
• Width: 72HP
• Function Type: Multiple Arbitrary Function Generator

Function Generation

• Dedicated Output Voltage Sliders: 16
• Dedicated Time Interval Sliders: 16
• Maximum Number of Time Segments: 16
• Time Segment Range: 1 ms to 120 seconds
• Output Types: Continuous, quantised, sloped and stepped
• Range Offset: Yes
• Two Ranges of Programmed Outputs: Yes

Control and Modulation

• Segment by Segment Voltage Control: Times and output voltages
• Time Multiplier Controls: 2 (range 0.5 to 4x) with voltage control
• Stage Address Functionality: Yes, with voltage control
• Start/Stop Logic: Via panel switches or patched pulses/triggers
• Programmed Output Control: Any pattern

Inputs and Outputs

• External Inputs: 4
• Signal Generation: Yes
• Signal Processing: Yes (via inputs)

Memory and Musical Features

• Presets: 12 programmable memories
• Tone Scales: Included